\chapter{直线和平面}

\section{平面}
\input{units/ltjh-ch1-subsec1}
\input{units/ltjh-ch1-subsec2}
\input{units/ltjh-ch1-subsec3}
\input{units/ltjh-ch1-xiti1}

\section{空间两条直线}
\input{units/ltjh-ch1-subsec4}
\input{units/ltjh-ch1-subsec5}
\input{units/ltjh-ch1-subsec6}
\input{units/ltjh-ch1-xiti2}

\section{空间直线和平面}
\input{units/ltjh-ch1-subsec7}
\input{units/ltjh-ch1-subsec8}
\input{units/ltjh-ch1-xiti3}

\input{units/ltjh-ch1-subsec9}
\input{units/ltjh-ch1-subsec10}
\input{units/ltjh-ch1-subsec11}
\input{units/ltjh-ch1-xiti4}

\section{空间两个平面}
\input{units/ltjh-ch1-subsec12}
\input{units/ltjh-ch1-subsec13}
\input{units/ltjh-ch1-xiti5}

\input{units/ltjh-ch1-subsec14}
\input{units/ltjh-ch1-subsec15}
\input{units/ltjh-ch1-xiti6}

\input{units/ltjh-ch1-xiaojie}

\nonumsection{复习参考题一}
\input{units/ltjh-ch1-fuxi-A}
\input{units/ltjh-ch1-fuxi-B}

